TSTP Solution File: FLD040-3 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : FLD040-3 : TPTP v8.1.2. Bugfixed v2.1.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.GrEaloO1ho true

% Computer : n016.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Aug 30 22:39:22 EDT 2023

% Result   : Unsatisfiable 227.89s 34.02s
% Output   : Refutation 227.89s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : FLD040-3 : TPTP v8.1.2. Bugfixed v2.1.0.
% 0.00/0.12  % Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.GrEaloO1ho true
% 0.13/0.31  % Computer : n016.cluster.edu
% 0.13/0.31  % Model    : x86_64 x86_64
% 0.13/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.31  % Memory   : 8042.1875MB
% 0.13/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.31  % CPULimit : 300
% 0.13/0.31  % WCLimit  : 300
% 0.13/0.31  % DateTime : Sun Aug 27 23:51:29 EDT 2023
% 0.13/0.31  % CPUTime  : 
% 0.13/0.31  % Running portfolio for 300 s
% 0.13/0.31  % File         : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.32  % Number of cores: 8
% 0.13/0.32  % Python version: Python 3.6.8
% 0.13/0.32  % Running in FO mode
% 0.16/0.53  % Total configuration time : 435
% 0.16/0.53  % Estimated wc time : 1092
% 0.16/0.53  % Estimated cpu time (7 cpus) : 156.0
% 0.16/0.62  % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.16/0.63  % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.16/0.64  % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.16/0.64  % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.16/0.65  % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.16/0.65  % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.16/0.66  % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 227.89/34.02  % Solved by fo/fo3_bce.sh.
% 227.89/34.02  % BCE start: 29
% 227.89/34.02  % BCE eliminated: 0
% 227.89/34.02  % PE start: 29
% 227.89/34.02  logic: neq
% 227.89/34.02  % PE eliminated: 0
% 227.89/34.02  % done 21902 iterations in 33.354s
% 227.89/34.02  % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 227.89/34.02  % SZS output start Refutation
% 227.89/34.02  thf(sum_type, type, sum: $i > $i > $i > $o).
% 227.89/34.02  thf(a_type, type, a: $i).
% 227.89/34.02  thf(product_type, type, product: $i > $i > $i > $o).
% 227.89/34.02  thf(additive_identity_type, type, additive_identity: $i).
% 227.89/34.02  thf(multiplicative_identity_type, type, multiplicative_identity: $i).
% 227.89/34.02  thf(additive_inverse_type, type, additive_inverse: $i > $i).
% 227.89/34.02  thf(multiplicative_inverse_type, type, multiplicative_inverse: $i > $i).
% 227.89/34.02  thf(less_or_equal_type, type, less_or_equal: $i > $i > $o).
% 227.89/34.02  thf(defined_type, type, defined: $i > $o).
% 227.89/34.02  thf(existence_of_inverse_addition, axiom,
% 227.89/34.02    (( sum @ ( additive_inverse @ X ) @ X @ additive_identity ) | 
% 227.89/34.02     ( ~( defined @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl3, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ (additive_inverse @ X0) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_inverse_addition])).
% 227.89/34.02  thf(existence_of_identity_addition, axiom,
% 227.89/34.02    (( sum @ additive_identity @ X @ X ) | ( ~( defined @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl2, plain,
% 227.89/34.02      (![X0 : $i]: ( (sum @ additive_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_addition])).
% 227.89/34.02  thf(associativity_addition_1, axiom,
% 227.89/34.02    (( sum @ X @ V @ W ) | ( ~( sum @ X @ Y @ U ) ) | 
% 227.89/34.02     ( ~( sum @ Y @ Z @ V ) ) | ( ~( sum @ U @ Z @ W ) ))).
% 227.89/34.02  thf(zip_derived_cl0, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (sum @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_1])).
% 227.89/34.02  thf(zip_derived_cl38, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ X0 @ X2 @ X1)
% 227.89/34.02          | ~ (sum @ X0 @ X2 @ X3)
% 227.89/34.02          |  (sum @ additive_identity @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl519, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X1 @ additive_identity)
% 227.89/34.02          | ~ (sum @ (additive_inverse @ X0) @ X0 @ X1)
% 227.89/34.02          | ~ (defined @ (additive_inverse @ X0)))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl38])).
% 227.89/34.02  thf(well_definedness_of_additive_inverse, axiom,
% 227.89/34.02    (( defined @ ( additive_inverse @ X ) ) | ( ~( defined @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl14, plain,
% 227.89/34.02      (![X0 : $i]: ( (defined @ (additive_inverse @ X0)) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_inverse])).
% 227.89/34.02  thf(zip_derived_cl16210, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (sum @ (additive_inverse @ X0) @ X0 @ X1)
% 227.89/34.02          |  (sum @ additive_identity @ X1 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('clc', [status(thm)], [zip_derived_cl519, zip_derived_cl14])).
% 227.89/34.02  thf(well_definedness_of_multiplicative_identity, axiom,
% 227.89/34.02    (defined @ multiplicative_identity)).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(totality_of_order_relation, axiom,
% 227.89/34.02    (( less_or_equal @ X @ Y ) | ( less_or_equal @ Y @ X ) | 
% 227.89/34.02     ( ~( defined @ X ) ) | ( ~( defined @ Y ) ))).
% 227.89/34.02  thf(zip_derived_cl22, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (less_or_equal @ X0 @ X1)
% 227.89/34.02          |  (less_or_equal @ X1 @ X0)
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          | ~ (defined @ X1))),
% 227.89/34.02      inference('cnf', [status(esa)], [totality_of_order_relation])).
% 227.89/34.02  thf(zip_derived_cl73, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (less_or_equal @ X0 @ multiplicative_identity)
% 227.89/34.02          |  (less_or_equal @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl16, zip_derived_cl22])).
% 227.89/34.02  thf(zip_derived_cl1533, plain,
% 227.89/34.02      (( (less_or_equal @ multiplicative_identity @ multiplicative_identity)
% 227.89/34.02        |  (less_or_equal @ multiplicative_identity @ multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl16, zip_derived_cl73])).
% 227.89/34.02  thf(zip_derived_cl1538, plain,
% 227.89/34.02      ( (less_or_equal @ multiplicative_identity @ multiplicative_identity)),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl1533])).
% 227.89/34.02  thf(antisymmetry_of_order_relation, axiom,
% 227.89/34.02    (( sum @ additive_identity @ X @ Y ) | ( ~( less_or_equal @ X @ Y ) ) | 
% 227.89/34.02     ( ~( less_or_equal @ Y @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl20, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ X1)
% 227.89/34.02          | ~ (less_or_equal @ X0 @ X1)
% 227.89/34.02          | ~ (less_or_equal @ X1 @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [antisymmetry_of_order_relation])).
% 227.89/34.02  thf(zip_derived_cl2, plain,
% 227.89/34.02      (![X0 : $i]: ( (sum @ additive_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_addition])).
% 227.89/34.02  thf(commutativity_addition, axiom,
% 227.89/34.02    (( sum @ Y @ X @ Z ) | ( ~( sum @ X @ Y @ Z ) ))).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl39, plain,
% 227.89/34.02      (![X0 : $i]: (~ (defined @ X0) |  (sum @ X0 @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl39, plain,
% 227.89/34.02      (![X0 : $i]: (~ (defined @ X0) |  (sum @ X0 @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl39, plain,
% 227.89/34.02      (![X0 : $i]: (~ (defined @ X0) |  (sum @ X0 @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl4])).
% 227.89/34.02  thf(sum_3, conjecture,
% 227.89/34.02    (~( sum @
% 227.89/34.02        additive_identity @ additive_identity @ ( multiplicative_inverse @ a ) ))).
% 227.89/34.02  thf(zf_stmt_0, negated_conjecture,
% 227.89/34.02    (sum @
% 227.89/34.02     additive_identity @ additive_identity @ ( multiplicative_inverse @ a )),
% 227.89/34.02    inference('cnf.neg', [status(esa)], [sum_3])).
% 227.89/34.02  thf(zip_derived_cl28, plain,
% 227.89/34.02      ( (sum @ additive_identity @ additive_identity @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('cnf', [status(esa)], [zf_stmt_0])).
% 227.89/34.02  thf(associativity_addition_2, axiom,
% 227.89/34.02    (( sum @ U @ Z @ W ) | ( ~( sum @ X @ Y @ U ) ) | 
% 227.89/34.02     ( ~( sum @ Y @ Z @ V ) ) | ( ~( sum @ X @ V @ W ) ))).
% 227.89/34.02  thf(zip_derived_cl1, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X3 @ X4 @ X0)
% 227.89/34.02          | ~ (sum @ X4 @ X1 @ X5)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_2])).
% 227.89/34.02  thf(zip_derived_cl51, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (sum @ additive_identity @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X2 @ X1)
% 227.89/34.02          |  (sum @ (multiplicative_inverse @ a) @ X2 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl1])).
% 227.89/34.02  thf(zip_derived_cl272, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ additive_identity)
% 227.89/34.02          |  (sum @ (multiplicative_inverse @ a) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl51])).
% 227.89/34.02  thf(well_definedness_of_additive_identity, axiom,
% 227.89/34.02    (defined @ additive_identity)).
% 227.89/34.02  thf(zip_derived_cl13, plain, ( (defined @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_identity])).
% 227.89/34.02  thf(zip_derived_cl284, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ (multiplicative_inverse @ a) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl272, zip_derived_cl13])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl308, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          |  (sum @ X0 @ (multiplicative_inverse @ a) @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl284, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl317, plain,
% 227.89/34.02      ((~ (defined @ additive_identity)
% 227.89/34.02        |  (sum @ additive_identity @ (multiplicative_inverse @ a) @ 
% 227.89/34.02            additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl308])).
% 227.89/34.02  thf(zip_derived_cl13, plain, ( (defined @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_identity])).
% 227.89/34.02  thf(zip_derived_cl325, plain,
% 227.89/34.02      ( (sum @ additive_identity @ (multiplicative_inverse @ a) @ 
% 227.89/34.02         additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl317, zip_derived_cl13])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl332, plain,
% 227.89/34.02      ( (sum @ (multiplicative_inverse @ a) @ additive_identity @ 
% 227.89/34.02         additive_identity)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl325, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl28, plain,
% 227.89/34.02      ( (sum @ additive_identity @ additive_identity @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('cnf', [status(esa)], [zf_stmt_0])).
% 227.89/34.02  thf(zip_derived_cl0, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (sum @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_1])).
% 227.89/34.02  thf(zip_derived_cl29, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (sum @ (multiplicative_inverse @ a) @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X1 @ X2)
% 227.89/34.02          |  (sum @ additive_identity @ X2 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl377, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl332, zip_derived_cl29])).
% 227.89/34.02  thf(zip_derived_cl409, plain,
% 227.89/34.02      ((~ (defined @ additive_identity)
% 227.89/34.02        |  (sum @ additive_identity @ additive_identity @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl377])).
% 227.89/34.02  thf(zip_derived_cl13, plain, ( (defined @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_identity])).
% 227.89/34.02  thf(zip_derived_cl418, plain,
% 227.89/34.02      ( (sum @ additive_identity @ additive_identity @ additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl409, zip_derived_cl13])).
% 227.89/34.02  thf(zip_derived_cl0, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (sum @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_1])).
% 227.89/34.02  thf(zip_derived_cl422, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (sum @ additive_identity @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X1 @ X2)
% 227.89/34.02          |  (sum @ additive_identity @ X2 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl418, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl1295, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X1 @ X0))),
% 227.89/34.02      inference('eq_fact', [status(thm)], [zip_derived_cl422])).
% 227.89/34.02  thf(zip_derived_cl1306, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (less_or_equal @ X0 @ X1)
% 227.89/34.02          | ~ (less_or_equal @ X1 @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl20, zip_derived_cl1295])).
% 227.89/34.02  thf(zip_derived_cl1576, plain,
% 227.89/34.02      (( (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02          multiplicative_identity)
% 227.89/34.02        | ~ (less_or_equal @ multiplicative_identity @ multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1538, zip_derived_cl1306])).
% 227.89/34.02  thf(zip_derived_cl1538, plain,
% 227.89/34.02      ( (less_or_equal @ multiplicative_identity @ multiplicative_identity)),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl1533])).
% 227.89/34.02  thf(zip_derived_cl1578, plain,
% 227.89/34.02      ( (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl1576, zip_derived_cl1538])).
% 227.89/34.02  thf(zip_derived_cl3, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ (additive_inverse @ X0) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_inverse_addition])).
% 227.89/34.02  thf(zip_derived_cl0, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (sum @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_1])).
% 227.89/34.02  thf(zip_derived_cl56, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X2 @ X1)
% 227.89/34.02          | ~ (sum @ X0 @ X2 @ X3)
% 227.89/34.02          |  (sum @ (additive_inverse @ X0) @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl1593, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (sum @ (additive_inverse @ X1) @ X0 @ multiplicative_identity)
% 227.89/34.02          | ~ (sum @ X1 @ multiplicative_identity @ X0)
% 227.89/34.02          | ~ (defined @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1578, zip_derived_cl56])).
% 227.89/34.02  thf(zip_derived_cl66286, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02              additive_identity)
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ X0 @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('sup+', [status(thm)],
% 227.89/34.02                [zip_derived_cl16210, zip_derived_cl1593])).
% 227.89/34.02  thf(zip_derived_cl66300, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (sum @ X0 @ multiplicative_identity @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02              additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl66286])).
% 227.89/34.02  thf(zip_derived_cl284, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ (multiplicative_inverse @ a) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl272, zip_derived_cl13])).
% 227.89/34.02  thf(zip_derived_cl325, plain,
% 227.89/34.02      ( (sum @ additive_identity @ (multiplicative_inverse @ a) @ 
% 227.89/34.02         additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl317, zip_derived_cl13])).
% 227.89/34.02  thf(zip_derived_cl1578, plain,
% 227.89/34.02      ( (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl1576, zip_derived_cl1538])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl1582, plain,
% 227.89/34.02      ( (sum @ multiplicative_identity @ additive_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1578, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl1, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X3 @ X4 @ X0)
% 227.89/34.02          | ~ (sum @ X4 @ X1 @ X5)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_2])).
% 227.89/34.02  thf(zip_derived_cl54, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (sum @ X2 @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ X1 @ X3 @ X1)
% 227.89/34.02          |  (sum @ X0 @ X3 @ X0))),
% 227.89/34.02      inference('eq_fact', [status(thm)], [zip_derived_cl1])).
% 227.89/34.02  thf(zip_derived_cl1609, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ multiplicative_identity @ X0 @ multiplicative_identity)
% 227.89/34.02          | ~ (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1582, zip_derived_cl54])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl6009, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          |  (sum @ X0 @ multiplicative_identity @ multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1609, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl6188, plain,
% 227.89/34.02      ( (sum @ (multiplicative_inverse @ a) @ multiplicative_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl325, zip_derived_cl6009])).
% 227.89/34.02  thf(zip_derived_cl28, plain,
% 227.89/34.02      ( (sum @ additive_identity @ additive_identity @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('cnf', [status(esa)], [zf_stmt_0])).
% 227.89/34.02  thf(zip_derived_cl39, plain,
% 227.89/34.02      (![X0 : $i]: (~ (defined @ X0) |  (sum @ X0 @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl29, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (sum @ (multiplicative_inverse @ a) @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X1 @ X2)
% 227.89/34.02          |  (sum @ additive_identity @ X2 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl133, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ (multiplicative_inverse @ a))
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ (multiplicative_inverse @ a))
% 227.89/34.02          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl29])).
% 227.89/34.02  thf(not_sum_2, conjecture, (sum @ additive_identity @ a @ additive_identity)).
% 227.89/34.02  thf(zf_stmt_1, negated_conjecture,
% 227.89/34.02    (~( sum @ additive_identity @ a @ additive_identity )),
% 227.89/34.02    inference('cnf.neg', [status(esa)], [not_sum_2])).
% 227.89/34.02  thf(zip_derived_cl27, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ a @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [zf_stmt_1])).
% 227.89/34.02  thf(well_definedness_of_multiplicative_inverse, axiom,
% 227.89/34.02    (( defined @ ( multiplicative_inverse @ X ) ) | ( ~( defined @ X ) ) | 
% 227.89/34.02     ( sum @ additive_identity @ X @ additive_identity ))).
% 227.89/34.02  thf(zip_derived_cl17, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (defined @ (multiplicative_inverse @ X0))
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_inverse])).
% 227.89/34.02  thf(zip_derived_cl45, plain,
% 227.89/34.02      ((~ (defined @ a) |  (defined @ (multiplicative_inverse @ a)))),
% 227.89/34.02      inference('sup+', [status(thm)], [zip_derived_cl27, zip_derived_cl17])).
% 227.89/34.02  thf(a_is_defined, axiom, (defined @ a)).
% 227.89/34.02  thf(zip_derived_cl26, plain, ( (defined @ a)),
% 227.89/34.02      inference('cnf', [status(esa)], [a_is_defined])).
% 227.89/34.02  thf(zip_derived_cl46, plain, ( (defined @ (multiplicative_inverse @ a))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl45, zip_derived_cl26])).
% 227.89/34.02  thf(zip_derived_cl136, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ (multiplicative_inverse @ a))
% 227.89/34.02          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl133, zip_derived_cl46])).
% 227.89/34.02  thf(zip_derived_cl144, plain,
% 227.89/34.02      ( (sum @ additive_identity @ (multiplicative_inverse @ a) @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl28, zip_derived_cl136])).
% 227.89/34.02  thf(zip_derived_cl0, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (sum @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (sum @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_addition_1])).
% 227.89/34.02  thf(zip_derived_cl149, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (sum @ (multiplicative_inverse @ a) @ X1 @ X0)
% 227.89/34.02          | ~ (sum @ (multiplicative_inverse @ a) @ X1 @ X2)
% 227.89/34.02          |  (sum @ additive_identity @ X2 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl144, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl6308, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ multiplicative_identity)
% 227.89/34.02          | ~ (sum @ (multiplicative_inverse @ a) @ multiplicative_identity @ 
% 227.89/34.02               X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl6188, zip_derived_cl149])).
% 227.89/34.02  thf(zip_derived_cl8382, plain,
% 227.89/34.02      ((~ (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02           additive_identity)
% 227.89/34.02        |  (sum @ additive_identity @ additive_identity @ 
% 227.89/34.02            multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl284, zip_derived_cl6308])).
% 227.89/34.02  thf(different_identities, axiom,
% 227.89/34.02    (~( sum @ additive_identity @ additive_identity @ multiplicative_identity ))).
% 227.89/34.02  thf(zip_derived_cl25, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ additive_identity @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [different_identities])).
% 227.89/34.02  thf(zip_derived_cl8387, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ multiplicative_identity @ additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl8382, zip_derived_cl25])).
% 227.89/34.02  thf(zip_derived_cl67807, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0) | ~ (sum @ X0 @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('clc', [status(thm)], [zip_derived_cl66300, zip_derived_cl8387])).
% 227.89/34.02  thf(existence_of_identity_multiplication, axiom,
% 227.89/34.02    (( product @ multiplicative_identity @ X @ X ) | ( ~( defined @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl7, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ multiplicative_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_multiplication])).
% 227.89/34.02  thf(zip_derived_cl7, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ multiplicative_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_multiplication])).
% 227.89/34.02  thf(distributivity_1, axiom,
% 227.89/34.02    (( sum @ C @ D @ B ) | ( ~( sum @ X @ Y @ A ) ) | 
% 227.89/34.02     ( ~( product @ A @ Z @ B ) ) | ( ~( product @ X @ Z @ C ) ) | 
% 227.89/34.02     ( ~( product @ Y @ Z @ D ) ))).
% 227.89/34.02  thf(zip_derived_cl10, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X3 @ X4 @ X5)
% 227.89/34.02          | ~ (product @ X5 @ X6 @ X2)
% 227.89/34.02          | ~ (product @ X3 @ X6 @ X0)
% 227.89/34.02          | ~ (product @ X4 @ X6 @ X1))),
% 227.89/34.02      inference('cnf', [status(esa)], [distributivity_1])).
% 227.89/34.02  thf(zip_derived_cl163, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (product @ X2 @ X0 @ X1)
% 227.89/34.02          | ~ (product @ X4 @ X0 @ X3)
% 227.89/34.02          | ~ (sum @ X4 @ X2 @ multiplicative_identity)
% 227.89/34.02          |  (sum @ X3 @ X1 @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl10])).
% 227.89/34.02  thf(zip_derived_cl4458, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ X1 @ X0 @ X0)
% 227.89/34.02          | ~ (sum @ X2 @ multiplicative_identity @ multiplicative_identity)
% 227.89/34.02          | ~ (product @ X2 @ X0 @ X1)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl163])).
% 227.89/34.02  thf(zip_derived_cl4463, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (product @ X2 @ X0 @ X1)
% 227.89/34.02          | ~ (sum @ X2 @ multiplicative_identity @ multiplicative_identity)
% 227.89/34.02          |  (sum @ X1 @ X0 @ X0)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl4458])).
% 227.89/34.02  thf(zip_derived_cl1582, plain,
% 227.89/34.02      ( (sum @ multiplicative_identity @ additive_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1578, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl20, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ X1)
% 227.89/34.02          | ~ (less_or_equal @ X0 @ X1)
% 227.89/34.02          | ~ (less_or_equal @ X1 @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [antisymmetry_of_order_relation])).
% 227.89/34.02  thf(zip_derived_cl136, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ (multiplicative_inverse @ a))
% 227.89/34.02          | ~ (sum @ additive_identity @ additive_identity @ X0))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl133, zip_derived_cl46])).
% 227.89/34.02  thf(zip_derived_cl142, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (less_or_equal @ X0 @ additive_identity)
% 227.89/34.02          | ~ (less_or_equal @ additive_identity @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ (multiplicative_inverse @ a)))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl20, zip_derived_cl136])).
% 227.89/34.02  thf(zip_derived_cl56, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ additive_identity @ X2 @ X1)
% 227.89/34.02          | ~ (sum @ X0 @ X2 @ X3)
% 227.89/34.02          |  (sum @ (additive_inverse @ X0) @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl0])).
% 227.89/34.02  thf(zip_derived_cl4166, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (less_or_equal @ additive_identity @ X0)
% 227.89/34.02          | ~ (less_or_equal @ X0 @ additive_identity)
% 227.89/34.02          |  (sum @ (additive_inverse @ X2) @ X1 @ (multiplicative_inverse @ a))
% 227.89/34.02          | ~ (sum @ X2 @ X0 @ X1)
% 227.89/34.02          | ~ (defined @ X2))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl142, zip_derived_cl56])).
% 227.89/34.02  thf(zip_derived_cl172210, plain,
% 227.89/34.02      ((~ (defined @ multiplicative_identity)
% 227.89/34.02        |  (sum @ (additive_inverse @ multiplicative_identity) @ 
% 227.89/34.02            multiplicative_identity @ (multiplicative_inverse @ a))
% 227.89/34.02        | ~ (less_or_equal @ additive_identity @ additive_identity)
% 227.89/34.02        | ~ (less_or_equal @ additive_identity @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl1582, zip_derived_cl4166])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl13, plain, ( (defined @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_identity])).
% 227.89/34.02  thf(zip_derived_cl13, plain, ( (defined @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_identity])).
% 227.89/34.02  thf(zip_derived_cl22, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (less_or_equal @ X0 @ X1)
% 227.89/34.02          |  (less_or_equal @ X1 @ X0)
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          | ~ (defined @ X1))),
% 227.89/34.02      inference('cnf', [status(esa)], [totality_of_order_relation])).
% 227.89/34.02  thf(zip_derived_cl71, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (less_or_equal @ X0 @ additive_identity)
% 227.89/34.02          |  (less_or_equal @ additive_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl13, zip_derived_cl22])).
% 227.89/34.02  thf(zip_derived_cl1436, plain,
% 227.89/34.02      (( (less_or_equal @ additive_identity @ additive_identity)
% 227.89/34.02        |  (less_or_equal @ additive_identity @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl13, zip_derived_cl71])).
% 227.89/34.02  thf(zip_derived_cl1443, plain,
% 227.89/34.02      ( (less_or_equal @ additive_identity @ additive_identity)),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl1436])).
% 227.89/34.02  thf(zip_derived_cl1443, plain,
% 227.89/34.02      ( (less_or_equal @ additive_identity @ additive_identity)),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl1436])).
% 227.89/34.02  thf(zip_derived_cl172529, plain,
% 227.89/34.02      ( (sum @ (additive_inverse @ multiplicative_identity) @ 
% 227.89/34.02         multiplicative_identity @ (multiplicative_inverse @ a))),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl172210, zip_derived_cl16, zip_derived_cl1443, 
% 227.89/34.02                 zip_derived_cl1443])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl196268, plain,
% 227.89/34.02      ( (sum @ multiplicative_identity @ 
% 227.89/34.02         (additive_inverse @ multiplicative_identity) @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl172529, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl7, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ multiplicative_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_multiplication])).
% 227.89/34.02  thf(commutativity_multiplication, axiom,
% 227.89/34.02    (( product @ Y @ X @ Z ) | ( ~( product @ X @ Y @ Z ) ))).
% 227.89/34.02  thf(zip_derived_cl9, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2) | ~ (product @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_multiplication])).
% 227.89/34.02  thf(zip_derived_cl55, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0) |  (product @ X0 @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl9])).
% 227.89/34.02  thf(zip_derived_cl3, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (sum @ (additive_inverse @ X0) @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_inverse_addition])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl58, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ X0 @ (additive_inverse @ X0) @ additive_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl3, zip_derived_cl4])).
% 227.89/34.02  thf(distributivity_2, axiom,
% 227.89/34.02    (( product @ A @ Z @ B ) | ( ~( sum @ X @ Y @ A ) ) | 
% 227.89/34.02     ( ~( product @ X @ Z @ C ) ) | ( ~( product @ Y @ Z @ D ) ) | 
% 227.89/34.02     ( ~( sum @ C @ D @ B ) ))).
% 227.89/34.02  thf(zip_derived_cl11, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (sum @ X3 @ X4 @ X0)
% 227.89/34.02          | ~ (product @ X3 @ X1 @ X5)
% 227.89/34.02          | ~ (product @ X4 @ X1 @ X6)
% 227.89/34.02          | ~ (sum @ X5 @ X6 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [distributivity_2])).
% 227.89/34.02  thf(zip_derived_cl203, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ X3 @ X2 @ X1)
% 227.89/34.02          | ~ (product @ (additive_inverse @ X0) @ X4 @ X2)
% 227.89/34.02          | ~ (product @ X0 @ X4 @ X3)
% 227.89/34.02          |  (product @ additive_identity @ X4 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl58, zip_derived_cl11])).
% 227.89/34.02  thf(zip_derived_cl5692, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (defined @ (additive_inverse @ X0))
% 227.89/34.02          |  (product @ additive_identity @ multiplicative_identity @ X1)
% 227.89/34.02          | ~ (product @ X0 @ multiplicative_identity @ X2)
% 227.89/34.02          | ~ (sum @ X2 @ (additive_inverse @ X0) @ X1)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl55, zip_derived_cl203])).
% 227.89/34.02  thf(zip_derived_cl14, plain,
% 227.89/34.02      (![X0 : $i]: ( (defined @ (additive_inverse @ X0)) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [well_definedness_of_additive_inverse])).
% 227.89/34.02  thf(zip_derived_cl245866, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (sum @ X2 @ (additive_inverse @ X0) @ X1)
% 227.89/34.02          | ~ (product @ X0 @ multiplicative_identity @ X2)
% 227.89/34.02          |  (product @ additive_identity @ multiplicative_identity @ X1))),
% 227.89/34.02      inference('clc', [status(thm)], [zip_derived_cl5692, zip_derived_cl14])).
% 227.89/34.02  thf(zip_derived_cl245951, plain,
% 227.89/34.02      (( (product @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02          (multiplicative_inverse @ a))
% 227.89/34.02        | ~ (product @ multiplicative_identity @ multiplicative_identity @ 
% 227.89/34.02             multiplicative_identity)
% 227.89/34.02        | ~ (defined @ multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)],
% 227.89/34.02                [zip_derived_cl196268, zip_derived_cl245866])).
% 227.89/34.02  thf(zip_derived_cl55, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0) |  (product @ X0 @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl9])).
% 227.89/34.02  thf(existence_of_inverse_multiplication, axiom,
% 227.89/34.02    (( product @ ( multiplicative_inverse @ X ) @ X @ multiplicative_identity ) | 
% 227.89/34.02     ( sum @ additive_identity @ X @ additive_identity ) | ( ~( defined @ X ) ))).
% 227.89/34.02  thf(zip_derived_cl8, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ (multiplicative_inverse @ X0) @ X0 @ 
% 227.89/34.02            multiplicative_identity)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_inverse_multiplication])).
% 227.89/34.02  thf(zip_derived_cl7, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ multiplicative_identity @ X0 @ X0) | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_identity_multiplication])).
% 227.89/34.02  thf(associativity_multiplication_1, axiom,
% 227.89/34.02    (( product @ X @ V @ W ) | ( ~( product @ X @ Y @ U ) ) | 
% 227.89/34.02     ( ~( product @ Y @ Z @ V ) ) | ( ~( product @ U @ Z @ W ) ))).
% 227.89/34.02  thf(zip_derived_cl5, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (product @ X0 @ X3 @ X4)
% 227.89/34.02          | ~ (product @ X3 @ X5 @ X1)
% 227.89/34.02          | ~ (product @ X4 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_multiplication_1])).
% 227.89/34.02  thf(zip_derived_cl65, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (product @ X0 @ X2 @ X1)
% 227.89/34.02          | ~ (product @ X0 @ X2 @ X3)
% 227.89/34.02          |  (product @ multiplicative_identity @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl5])).
% 227.89/34.02  thf(zip_derived_cl1273, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          |  (product @ multiplicative_identity @ X1 @ multiplicative_identity)
% 227.89/34.02          | ~ (product @ (multiplicative_inverse @ X0) @ X0 @ X1)
% 227.89/34.02          | ~ (defined @ (multiplicative_inverse @ X0)))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl65])).
% 227.89/34.02  thf(zip_derived_cl17, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (defined @ (multiplicative_inverse @ X0))
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_inverse])).
% 227.89/34.02  thf(zip_derived_cl52725, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (product @ (multiplicative_inverse @ X0) @ X0 @ X1)
% 227.89/34.02          |  (product @ multiplicative_identity @ X1 @ multiplicative_identity)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('clc', [status(thm)], [zip_derived_cl1273, zip_derived_cl17])).
% 227.89/34.02  thf(zip_derived_cl52732, plain,
% 227.89/34.02      ((~ (defined @ (multiplicative_inverse @ multiplicative_identity))
% 227.89/34.02        | ~ (defined @ multiplicative_identity)
% 227.89/34.02        |  (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02            additive_identity)
% 227.89/34.02        |  (product @ multiplicative_identity @ 
% 227.89/34.02            (multiplicative_inverse @ multiplicative_identity) @ 
% 227.89/34.02            multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl55, zip_derived_cl52725])).
% 227.89/34.02  thf(zip_derived_cl17, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (defined @ (multiplicative_inverse @ X0))
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_inverse])).
% 227.89/34.02  thf(zip_derived_cl8387, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ multiplicative_identity @ additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl8382, zip_derived_cl25])).
% 227.89/34.02  thf(zip_derived_cl8396, plain,
% 227.89/34.02      ((~ (defined @ multiplicative_identity)
% 227.89/34.02        |  (defined @ (multiplicative_inverse @ multiplicative_identity)))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl17, zip_derived_cl8387])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl8399, plain,
% 227.89/34.02      ( (defined @ (multiplicative_inverse @ multiplicative_identity))),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl8396, zip_derived_cl16])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl8387, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ multiplicative_identity @ additive_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl8382, zip_derived_cl25])).
% 227.89/34.02  thf(zip_derived_cl52736, plain,
% 227.89/34.02      ( (product @ multiplicative_identity @ 
% 227.89/34.02         (multiplicative_inverse @ multiplicative_identity) @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl52732, zip_derived_cl8399, zip_derived_cl16, 
% 227.89/34.02                 zip_derived_cl8387])).
% 227.89/34.02  thf(zip_derived_cl65, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (product @ X0 @ X2 @ X1)
% 227.89/34.02          | ~ (product @ X0 @ X2 @ X3)
% 227.89/34.02          |  (product @ multiplicative_identity @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl5])).
% 227.89/34.02  thf(zip_derived_cl1274, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (product @ multiplicative_identity @ X0 @ X0)
% 227.89/34.02          | ~ (product @ X2 @ X1 @ X0)
% 227.89/34.02          | ~ (defined @ X2))),
% 227.89/34.02      inference('eq_fact', [status(thm)], [zip_derived_cl65])).
% 227.89/34.02  thf(zip_derived_cl53411, plain,
% 227.89/34.02      ((~ (defined @ multiplicative_identity)
% 227.89/34.02        |  (product @ multiplicative_identity @ multiplicative_identity @ 
% 227.89/34.02            multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)],
% 227.89/34.02                [zip_derived_cl52736, zip_derived_cl1274])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl53425, plain,
% 227.89/34.02      ( (product @ multiplicative_identity @ multiplicative_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)], [zip_derived_cl53411, zip_derived_cl16])).
% 227.89/34.02  thf(zip_derived_cl16, plain, ( (defined @ multiplicative_identity)),
% 227.89/34.02      inference('cnf', [status(esa)],
% 227.89/34.02                [well_definedness_of_multiplicative_identity])).
% 227.89/34.02  thf(zip_derived_cl246094, plain,
% 227.89/34.02      ( (product @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl245951, zip_derived_cl53425, zip_derived_cl16])).
% 227.89/34.02  thf(zip_derived_cl9, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2) | ~ (product @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_multiplication])).
% 227.89/34.02  thf(zip_derived_cl246985, plain,
% 227.89/34.02      ( (product @ multiplicative_identity @ additive_identity @ 
% 227.89/34.02         (multiplicative_inverse @ a))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl246094, zip_derived_cl9])).
% 227.89/34.02  thf(zip_derived_cl8, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         ( (product @ (multiplicative_inverse @ X0) @ X0 @ 
% 227.89/34.02            multiplicative_identity)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('cnf', [status(esa)], [existence_of_inverse_multiplication])).
% 227.89/34.02  thf(zip_derived_cl9, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2) | ~ (product @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_multiplication])).
% 227.89/34.02  thf(zip_derived_cl130, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          |  (product @ X0 @ (multiplicative_inverse @ X0) @ 
% 227.89/34.02              multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl9])).
% 227.89/34.02  thf(zip_derived_cl55, plain,
% 227.89/34.02      (![X0 : $i]:
% 227.89/34.02         (~ (defined @ X0) |  (product @ X0 @ multiplicative_identity @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl9])).
% 227.89/34.02  thf(associativity_multiplication_2, axiom,
% 227.89/34.02    (( product @ U @ Z @ W ) | ( ~( product @ X @ Y @ U ) ) | 
% 227.89/34.02     ( ~( product @ Y @ Z @ V ) ) | ( ~( product @ X @ V @ W ) ))).
% 227.89/34.02  thf(zip_derived_cl6, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2)
% 227.89/34.02          | ~ (product @ X3 @ X4 @ X0)
% 227.89/34.02          | ~ (product @ X4 @ X1 @ X5)
% 227.89/34.02          | ~ (product @ X3 @ X5 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [associativity_multiplication_2])).
% 227.89/34.02  thf(zip_derived_cl115, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 227.89/34.02         (~ (defined @ X0)
% 227.89/34.02          | ~ (product @ X0 @ X2 @ X1)
% 227.89/34.02          | ~ (product @ multiplicative_identity @ X3 @ X2)
% 227.89/34.02          |  (product @ X0 @ X3 @ X1))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl55, zip_derived_cl6])).
% 227.89/34.02  thf(zip_derived_cl3665, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         ( (sum @ additive_identity @ X0 @ additive_identity)
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          |  (product @ X0 @ X1 @ multiplicative_identity)
% 227.89/34.02          | ~ (product @ multiplicative_identity @ X1 @ 
% 227.89/34.02               (multiplicative_inverse @ X0))
% 227.89/34.02          | ~ (defined @ X0))),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl115])).
% 227.89/34.02  thf(zip_derived_cl3674, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i]:
% 227.89/34.02         (~ (product @ multiplicative_identity @ X1 @ 
% 227.89/34.02             (multiplicative_inverse @ X0))
% 227.89/34.02          |  (product @ X0 @ X1 @ multiplicative_identity)
% 227.89/34.02          | ~ (defined @ X0)
% 227.89/34.02          |  (sum @ additive_identity @ X0 @ additive_identity))),
% 227.89/34.02      inference('simplify', [status(thm)], [zip_derived_cl3665])).
% 227.89/34.02  thf(zip_derived_cl247823, plain,
% 227.89/34.02      (( (sum @ additive_identity @ a @ additive_identity)
% 227.89/34.02        | ~ (defined @ a)
% 227.89/34.02        |  (product @ a @ additive_identity @ multiplicative_identity))),
% 227.89/34.02      inference('sup-', [status(thm)],
% 227.89/34.02                [zip_derived_cl246985, zip_derived_cl3674])).
% 227.89/34.02  thf(zip_derived_cl27, plain,
% 227.89/34.02      (~ (sum @ additive_identity @ a @ additive_identity)),
% 227.89/34.02      inference('cnf', [status(esa)], [zf_stmt_1])).
% 227.89/34.02  thf(zip_derived_cl26, plain, ( (defined @ a)),
% 227.89/34.02      inference('cnf', [status(esa)], [a_is_defined])).
% 227.89/34.02  thf(zip_derived_cl247875, plain,
% 227.89/34.02      ( (product @ a @ additive_identity @ multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl247823, zip_derived_cl27, zip_derived_cl26])).
% 227.89/34.02  thf(zip_derived_cl9, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (product @ X0 @ X1 @ X2) | ~ (product @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_multiplication])).
% 227.89/34.02  thf(zip_derived_cl247880, plain,
% 227.89/34.02      ( (product @ additive_identity @ a @ multiplicative_identity)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl247875, zip_derived_cl9])).
% 227.89/34.02  thf(zip_derived_cl248006, plain,
% 227.89/34.02      ((~ (defined @ a)
% 227.89/34.02        |  (sum @ multiplicative_identity @ a @ a)
% 227.89/34.02        | ~ (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02             multiplicative_identity))),
% 227.89/34.02      inference('sup+', [status(thm)],
% 227.89/34.02                [zip_derived_cl4463, zip_derived_cl247880])).
% 227.89/34.02  thf(zip_derived_cl26, plain, ( (defined @ a)),
% 227.89/34.02      inference('cnf', [status(esa)], [a_is_defined])).
% 227.89/34.02  thf(zip_derived_cl1578, plain,
% 227.89/34.02      ( (sum @ additive_identity @ multiplicative_identity @ 
% 227.89/34.02         multiplicative_identity)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl1576, zip_derived_cl1538])).
% 227.89/34.02  thf(zip_derived_cl248017, plain, ( (sum @ multiplicative_identity @ a @ a)),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl248006, zip_derived_cl26, zip_derived_cl1578])).
% 227.89/34.02  thf(zip_derived_cl4, plain,
% 227.89/34.02      (![X0 : $i, X1 : $i, X2 : $i]:
% 227.89/34.02         ( (sum @ X0 @ X1 @ X2) | ~ (sum @ X1 @ X0 @ X2))),
% 227.89/34.02      inference('cnf', [status(esa)], [commutativity_addition])).
% 227.89/34.02  thf(zip_derived_cl248055, plain, ( (sum @ a @ multiplicative_identity @ a)),
% 227.89/34.02      inference('sup-', [status(thm)], [zip_derived_cl248017, zip_derived_cl4])).
% 227.89/34.02  thf(zip_derived_cl248416, plain, (~ (defined @ a)),
% 227.89/34.02      inference('sup+', [status(thm)],
% 227.89/34.02                [zip_derived_cl67807, zip_derived_cl248055])).
% 227.89/34.02  thf(zip_derived_cl26, plain, ( (defined @ a)),
% 227.89/34.02      inference('cnf', [status(esa)], [a_is_defined])).
% 227.89/34.02  thf(zip_derived_cl248431, plain, ($false),
% 227.89/34.02      inference('demod', [status(thm)],
% 227.89/34.02                [zip_derived_cl248416, zip_derived_cl26])).
% 227.89/34.02  
% 227.89/34.02  % SZS output end Refutation
% 227.89/34.02  
% 227.89/34.02  
% 227.89/34.02  % Terminating...
% 228.64/34.13  % Runner terminated.
% 228.64/34.14  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------